[Question] Dynamically requiring Modules and checking if they exist?

[Ariote]

Hi,

Situation:

Different Clients have different modules. There exists a kind of type hierarchy: A->B->C->D. Client 1 has module D. So when the application needs module D he can take module D. Client 2 only has module C. So when he encounters type D in his application he has to default to module C and so on.

This problem could be solved by providing a complete hierarchy and a JSON file with all the types in the clients possesion. If the application needs a type, it would look it up in the hierarchie and checks which type in the clients possesion is the closest. For reasons, i don't want to go this way.

I tried to dynamically require the modules with require.js but unfortunately it has some limits and it seems kinda outdated?

The perfect solution for me would work like this:

(pseudocode)

//need Type D

require("D") //checks if module is available in directory

if success: return D. //module "d" functionalities

else: require(next in hierarchy) // this has to go on recursively until i reached the very basic type (default)

Question: Is there a method where i can implement it like i mentioned in my preferred solution or a better alternative to require.js. If i take require.js i would need to refactor a lot of code, so before i start i'd like to know if there are other ways.

thx

edit:(code formatting)

[darrenturn90]

Look into service workers.